07.03 Episode 135
Airdate: June 20, 2003

A 15 year old boy arrives at the SGC, claiming to be Jack O'Neill. He has O'Neill's security ID, his knowledge, his attitude, and his DNA is a statistical match. Adding to the puzzle, the colonel is missing. As SG-1 attempts to unravel the mystery, Young O'Neill begins to have flashes of memory of an abduction by the Asgard. Daniel and Teal'c pursue the investigation by interviewing other people who have reported similar experiences of alien abduction and memory loss. Meanwhile, however, Dr. Fraiser has disturbing news. Her analysis of Young O'Neill's DNA reveals that his genetic structure is breaking down. He is dying.

Carter informs Young O'Neill that his body is dying, and Jacob Carter offers suspended animation by the Tok'ra as a possible alternative, but the boy vanishes from the base instead. Meanwhile, Selmak recognizes the significance of the genetic anomaly in Young O'Neill's DNA. He is, in fact, a clone, and the evidence suggests that the Asgard have been abducting humans for research and replacing them with clones until the original can be returned. SG-1 is able to track down Young O'Neill, and together they devise a plan to apprehend the Asgard by intercepting the next attempt to exchange O'Neill for his clone.

Late at night, Young O'Neill is suddenly beamed up from his bedroom and replaced by a sleeping Colonel O'Neill, who is unaware that he has been missing for seven days. Aboard an Asgard ship, Young O'Neill overcomes his Asgard abductor and beams up the rest of SG-1. The Asgard is Loki, who admits to conducting unsanctioned experiments on humans, and when Thor appears, he reprimands Loki, then agrees to O'Neill's request to spare the life of his young clone. With a new life ahead of him, Young O'Neill returns to high school, determined to embrace the opportunity to live his life a second time.

Story by: Peter DeLuise and Michael Greenburg
Teleplay by: Damian Kindler
Directed by: Peter DeLuise

Guest Starring: Carmen Argenziano as Jacob Carter/Selmak, Michael Welch as Young Jack O'Neill, Teryl Rothery as Dr. Fraiser, Gregory Bennett as Lieutenant Colonel Harlan Beck, Tom Heaton as Werner, Poppi Reiner as Pamela, Ed Hong-Louie as Zyang Wu, Theresa Lee as Interpreter, Ralph Alderman as Shop Owner, Evan Lendrum as Pilot, Chris Kramer as Pilot, Noah Beggs as SF, Dan Payne as SF, Michael Shanks as Voice of Thor, Peter DeLuise as Voice of Loki

Reference: Asgard, Asgard Mothership, Asgard Stones, Asgard Transport Beam, Harlan Beck, Jacob Carter, Clones, F-302, Loki, Jack O'Neill, Young Jack O'Neill, Pamela, Thor, Tok'ra, Werner, Zyang Wu



Young Jack O'Neill